Bromine azide
Structural formula | |||||||||||||
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General | |||||||||||||
Surname | Bromine azide | ||||||||||||
Molecular formula | BrN 3 | ||||||||||||
Brief description |
colorless explosive liquid. |
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properties | |||||||||||||
Molar mass | 121.92 g mol −1 | ||||||||||||
Physical state |
liquid |
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Melting point |
−45 ° C |
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solubility |
soluble in water |
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safety instructions | |||||||||||||
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Bromine azide is a chemical compound from the group of azides or nitrogen halides .
Extraction and presentation
Bromine azide, by reaction of bromine with sodium azide or hydrogen azide or silver azide are obtained.
properties
Bromine azide is a colorless explosive liquid. The condensation of gaseous bromine azide to an orange-red liquid usually leads to an explosion. The pure liquid decomposes easily and is soluble in water to form a brown solution.
The bromine azide molecule is in a trans -configuration with weakly angled N 3 unit and having a sp 2 - hybridization bearing Br at the N-atom matching Br-NN-angle. In contrast to the chain-like iodine azide , bromine azide has a helical solid-state structure.
use
Bromazid and alkenes provide vicinal azido-bromo-alkanes. Addition to styrene in polar solvents gives 1-azido-2-bromo-1-phenylethane with 95% yield.
Individual evidence
- ^ A b Egon Wiberg: Textbook of Inorganic Chemistry . Walter de Gruyter GmbH & Co KG, 2019, ISBN 978-3-11-151030-9 , pp. 233 ( limited preview in Google Book search).
- ↑ a b P. B. Saxena: Chemistry of Interhalogen Compounds . Discovery Publishing House, 2007, ISBN 978-81-8356-243-0 , pp. 96 ( limited preview in Google Book search).
- ↑ a b Kurt Dehnicke, Peter Ruschke: The ultraviolet spectra of the halogen azides ClN 3 , BrN 3 and IN 3 / The Ultraviolet Spectra of the Halogen Azides ClN 3 , BrN 3 and IN 3 . In: Journal of Nature Research B . 33, 1978, pp. 750-752, doi: 10.1515 / znb-1978-0713 .
- ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
- ↑ a b Magdolna Hargittai, Inis C. Tornieporth-Oetting u. a .: Bromine azide - Determination of the molecular structure by electron diffraction in the gas phase. In: Angewandte Chemie. 105, 1993, pp. 773-774, doi: 10.1002 / ange.19931050529 .
- ↑ a b R. Andree, Karl-Heinz Büchel, Karlheinz Doser, Luise Ellinghaus, A. Engel: . Houben-Weyl Methods of Organic Chemistry Vol E 16, 4th Edition Supplement Organic N compounds I . Georg Thieme Verlag, 2014, ISBN 978-3-13-181904-8 , p. 1251 ( limited preview in Google Book Search).
- ↑ Basics and main group elements . Walter de Gruyter GmbH & Co KG, 2016, ISBN 978-3-11-049340-5 ( limited preview in the Google book search).
- ↑ Advanced Inorganic Chemistry Vol-1 . 1st edition. 1975, ISBN 81-87224-03-7 , pp. 746 ( limited preview in Google Book search).
- ^ Benjamin Lyhs, Dieter Bläser a. a .: Solid-state structure of bromine azide. In: Angewandte Chemie. 124, 2012, pp. 2008-2013, doi: 10.1002 / anie.201108092 .